Clean up excessive whitespace at the end of each line using the wspurify tool made by Laszlo Monda
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760 changed files with 12883 additions and 12164 deletions
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@ -1,7 +1,7 @@
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2010.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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@ -9,13 +9,13 @@
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/*
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Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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@ -39,20 +39,20 @@
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* or deletions) must not overlap. If there is possibility of two or more of the same kind of
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* operating occuring at the same point in time, atomic (mutex) locking should be used.
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*/
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#ifndef _ULW_RING_BUFF_H_
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#define _ULW_RING_BUFF_H_
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/* Includes: */
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#include <util/atomic.h>
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#include <stdint.h>
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#include <stdbool.h>
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/* Defines: */
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/** Size of each ring buffer, in data elements - must be between 1 and 255. */
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#define BUFFER_SIZE 255
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/** Type of data to store into the buffer. */
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#define RingBuff_Data_t uint8_t
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RingBuff_Data_t* Out; /**< Current retrieval location in the circular buffer */
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RingBuff_Count_t Count;
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} RingBuff_t;
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/* Inline Functions: */
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/** Initializes a ring buffer ready for use. Buffers must be initialized via this function
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* before any operations are called upon them. Already initialized buffers may be reset
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Buffer->Out = Buffer->Buffer;
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}
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}
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/** Retrieves the minimum number of bytes stored in a particular buffer. This value is computed
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* by entering an atomic lock on the buffer while the IN and OUT locations are fetched, so that
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* the buffer cannot be modified while the computation takes place. This value should be cached
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static inline RingBuff_Count_t RingBuffer_GetCount(RingBuff_t* const Buffer)
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{
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RingBuff_Count_t Count;
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ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
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{
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Count = Buffer->Count;
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}
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return Count;
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}
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/** Atomically determines if the specified ring buffer contains any free space. This should
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* be tested before storing data to the buffer, to ensure that no data is lost due to a
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* buffer overrun.
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* \param[in,out] Buffer Pointer to a ring buffer structure to insert into
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*
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* \return Boolean true if the buffer contains no free space, false otherwise
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*/
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*/
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static inline bool RingBuffer_IsFull(RingBuff_t* const Buffer)
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{
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return (RingBuffer_GetCount(Buffer) == BUFFER_SIZE);
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* \param[in,out] Buffer Pointer to a ring buffer structure to insert into
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*
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* \return Boolean true if the buffer contains no free space, false otherwise
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*/
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*/
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static inline bool RingBuffer_IsEmpty(RingBuff_t* const Buffer)
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{
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return (RingBuffer_GetCount(Buffer) == 0);
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const RingBuff_Data_t Data)
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{
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*Buffer->In = Data;
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if (++Buffer->In == &Buffer->Buffer[BUFFER_SIZE])
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Buffer->In = Buffer->Buffer;
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static inline RingBuff_Data_t RingBuffer_Remove(RingBuff_t* const Buffer)
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{
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RingBuff_Data_t Data = *Buffer->Out;
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if (++Buffer->Out == &Buffer->Buffer[BUFFER_SIZE])
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Buffer->Out = Buffer->Buffer;
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{
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Buffer->Count--;
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}
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return Data;
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}
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#endif
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